Datasets for Statistical Inference Assignment, Fall 2023.xlsx

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1	Title	Link	Metadata	Example Research Questions These are just examples which you may or may not use in your own analyses.
2	Sleep Health and Lifestyle	Link to the data set	Description of the data set	Do males and females differ on stress levels? Is there a statistically significant difference in the quality of sleep between doctors and nurses? What is the 95% confidence interval for the duration of sleep for the different occupations for males in the population, assuming random sampling?
3	Healthcare Insurance Expenses	Link to the data set	Description of the data set	Is there a statistically significant difference in the insurance charges between smokers and nonsmokers? What is the 95% confidence interval for the bmi of individuals in the different regions in the population, assuming random sampling?
4	Online Education System - Review	Link to the data set	Description of the data set	What is the 95% confidence interval for each level of satisfaction in the population, assuming random sampling? Is there a statistically significant difference in the proportion of satisfied students in online education between urban and rural areas? Do males and females differ on the study time in online education? Do males and females differ on the performance in online education?
5	Online Shop Customer Sales	Link to the data set	Description of the data set	Is there a statistically significant difference in the number of purchases between males and females in the population? What is the 95% confidence interval for the total sales in the different payment methods?
6	Airline Passenger Satisfaction	Link to the data set	Description of the data set	Is there a statistically significant difference in the proportion of satisfied passengers between Economy and Business classes? What is the 95% confidence interval for the different flight services for females in the population, assuming random sampling?
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